Variable geometry exhaust nozzle

Details Variable geometry exhaust nozzle Variable geometry exhaust nozzle

1980-06-02

1983-03-01

Reeves, Robert B.

Fluid sprinkling, spraying, and diffusing

Reaction motor discharge nozzle

With means controlling amount, shape or direction of...

60232, B64C 1506

Patent

active

043752764

ABSTRACT:
An exhaust nozzle for a gas turbine engine including a plurality of primary and secondary flaps which are pivotally positionable for varying the geometry of the nozzle and for providing thrust vectoring. Electromechanical actuators preferably are used to position the flaps. The inner surfaces of the primary flaps are preferably curved convexly to continually maintain the location of the nozzle throat on the primary flaps. Reverser doors can be added to permit thrust reversal and fairing flaps can be included outwardly of the primary and secondary flaps to maintain a smooth, aerodynamic flow.

REFERENCES:
patent: 2846843 (1958-08-01), Clark et al.
patent: 3299638 (1967-01-01), Santamaria et al.
patent: 3684182 (1972-08-01), Maison
patent: 3873027 (1975-03-01), Camboulires et al.
patent: 3897907 (1975-08-01), Colley
patent: 4241876 (1980-12-01), Pedersen
Electromechanical Flight Control Activation, Bird--Nov. 1977.
Report No. NASA CR-135289/General Electric Company, dated Jun. 1978, pp. 7a and 7b.

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